Indian Ocean coastal thicket is of high conservation value for preserving taxonomic and functional diversity of forest-dependent bird communities in a landscape of restricted forest availability

2017 ◽  
Vol 390 ◽  
pp. 157-165 ◽  
Author(s):  
David A. Ehlers Smith ◽  
Yvette C. Ehlers Smith ◽  
Colleen T. Downs
Birds ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 23-41
Author(s):  
Evangelos G. Kotsonas ◽  
Dimitrios E. Bakaloudis ◽  
Christos G. Vlachos ◽  
Eleni M. Abraham ◽  
Vassilis Goutner

Transhumance is a traditional animal husbandry system, but its effects on grassland avian communities have not been dealt with in depth. In this study, we quantified the influence of transhumance on the grassland avifauna, in representative pseudo-alpine grasslands with no (NGG), low (LGG), and high (HGG) grazing intensity in the Pindos Mountains, Central Greece. Two point count surveys were conducted within 20 sites in each grassland during the bird breeding season of 2016. We assessed bird diversity indices and accounted for whether the recorded habitat and topographic variables were involved in their variation. A total of 25 bird species were recorded, with the grazed grasslands supporting the most species of high conservation value, while the NGG showed the highest bird diversity. Bird species richness and diversity increased with the decrease of vegetation height, vegetation height heterogeneity, and the increase of rock cover. Bird communities exhibited different patterns among the three grazing regimes and specific bird species of high conservation value appeared to prefer different grasslands. Six species preferred HGG, one preferred LGG, while two preferred NGG. Our study highlights the necessity of heterogeneous pseudo-alpine grasslands with short and tall grass areas in order to maintain highly diverse bird communities.


PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1453 ◽  
Author(s):  
Juan S. Sánchez-Oliver ◽  
José M. Rey Benayas ◽  
Luis M. Carrascal

Afforestation programs such as the one promoted by the EU Common Agricultural Policy have spread tree plantations on former cropland. These afforestations attract generalist forest and ubiquitous species but may cause severe damage to open habitat species, especially birds of high conservation value. We investigated the effects of young (<20 yr) tree plantations dominated by pineP. halepensison bird communities inhabiting the adjacent open farmland habitat in central Spain. We hypothesize that pine plantations located at shorter distances from open fields and with larger surface would affect species richness and conservation value of bird communities. Regression models controlling for the influence of land use types around plantations revealed positive effects of higher distance to pine plantation edge on community species richness in winter, and negative effects on an index of conservation concern (SPEC) during the breeding season. However, plantation area did not have any effect on species richness or community conservation value. Our results indicate that the effects of pine afforestation on bird communities inhabiting Mediterranean cropland are diluted by heterogeneous agricultural landscapes.


2016 ◽  
Vol 6 (15) ◽  
pp. 5178-5189 ◽  
Author(s):  
Julien Terraube ◽  
Frédéric Archaux ◽  
Marc Deconchat ◽  
Inge van Halder ◽  
Hervé Jactel ◽  
...  

The Auk ◽  
2003 ◽  
Vol 120 (2) ◽  
pp. 541-549
Author(s):  
Tim Nuttle ◽  
Loren W. Burger,

2022 ◽  
Vol 324 ◽  
pp. 107708
Author(s):  
Vicente García-Navas ◽  
Carlos Martínez-Núñez ◽  
Rubén Tarifa ◽  
Antonio J. Manzaneda ◽  
Francisco Valera ◽  
...  

2010 ◽  
Vol 12 (02) ◽  
pp. 215-237 ◽  
Author(s):  
ADJÉ OLIVIER AHIMIN ◽  
MARIE MBOLO

The concept of "High Conservation Value" which was initially used by the Forest Stewardship Council, now plays an increasingly important role in several areas, and most significantly in the design and implementation of development projects. Within the framework of certification of community forests in Cameroon, this concept has been implemented in close collaboration with interested communities. Based on the activities conducted, it is worth noting that the consideration of informal management methods appear to result in better protection of biodiversity. Several categories of High Conservation Values were identified in 2 community-managed forests (Coopérative des Paysans de la Lékié & Bimbia Bonadikombo Community Forests) in Cameroon. Rare or endangered ecosystems, more than 300 plant species and more than 20 wildlife species, including endemic, rare, threatened or endangered species were found. Traditional conservation methods based on culture, as well as some ancestral practices and beliefs help to achieve this protection. Decision-makers and academics should learn from this empirical knowledge for protection programmes and projects of biodiversity.


Biologia ◽  
2015 ◽  
Vol 70 (1) ◽  
Author(s):  
Jakub Horak ◽  
Lenka Safarova

AbstractWetlands have recently become of high environmental interest. The restoration effects on habitats like fens are one of the main topics of recent restoration ecology, especially due to their interconnection with other ecosystems. We studied the manual mowing effect on abandoned fen using the response of three study taxa: diurnal butterflies, flower-visiting beetles and vascular plants. Our results showed that butterflies seems to be quickly-responding indicator taxon for evaluation and that restored management had a positive effect on both species richness and composition of this insect group. The results indicated that the manual mowing effect could be rapid. In comparison with the surrounding landscape, we found that: (i) the manually mowed site was most similar to strictly protected area, (ii) some species of high conservation value could reach higher abundance in restored than protected site, and (iii) manual mowing could bring a new type of habitat (i.e., spatial heterogeneity) compared to the other management types (abandonment, conservation and agri-environmental mowing). The main implication seems to be optimistic for practice: The manual mowing of long-term abandoned fen is leading to the creation of habitat with high conservation value in a relatively short time.


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